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Finding the Fourth Proportional to 485,416.32, 727,598.52 and 248,434.08

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Solution

The fourth proportional to 485,416.32, 727,598.52 and 248,434.08 is: 372,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,416.32 : 727,598.52 = 248,434.08 : x
  2. Step 2: Convert to fraction form
    485,416.32/727,598.52 = 248,434.08/x
  3. Step 3: Cross multiply
    485,416.32x = 727,598.52 × 248,434.08
  4. Step 4: Simplify right side
    485,416.32x = 180,760,268,925.56
  5. Step 5: Solve for x
    x = 180,760,268,925.56/485,416.32
  6. Step 6: Final answer
    x = 372,381.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.